Home / 1,280,933.60-1,921,400.40-808,541.60

Finding the Fourth Proportional to 1,280,933.60, 1,921,400.40 and 808,541.60

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Solution

The fourth proportional to 1,280,933.60, 1,921,400.40 and 808,541.60 is: 1,212,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,933.60 : 1,921,400.40 = 808,541.60 : x
  2. Step 2: Convert to fraction form
    1,280,933.60/1,921,400.40 = 808,541.60/x
  3. Step 3: Cross multiply
    1,280,933.60x = 1,921,400.40 × 808,541.60
  4. Step 4: Simplify right side
    1,280,933.60x = 1,553,532,153,656.64
  5. Step 5: Solve for x
    x = 1,553,532,153,656.64/1,280,933.60
  6. Step 6: Final answer
    x = 1,212,812.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.